Carlson, A. B., & Crilly, P. B. (2010). Communication systems: An introduction to signals and noise in electrical communication (5th ed.). McGraw-Hill Higher Education.

Carlson, A. Bruce, and Paul B. Crilly. Communication Systems: An Introduction to Signals and Noise in Electrical Communication. 5th ed. Boston ; New Delhi: McGraw-Hill Higher Education, 2010.

Carlson, A. Bruce, and Paul B. Crilly. Communication Systems: An Introduction to Signals and Noise in Electrical Communication. 5th ed. McGraw-Hill Higher Education, 2010.